Patents by Inventor J. ALEXANDER LIDDLE

J. ALEXANDER LIDDLE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10639634
    Abstract: A fluid sampler includes: a sample cell that includes: a substrate comprising: a first port; a second port in fluid communication with the first port; a viewing reservoir in fluid communication with the first port and the second port and that receives the fluid from the first port and communicates the fluid to the second port, the viewing reservoir including: a first view membrane; a second view membrane; and a pillar interposed between the first view membrane and second view membrane, the pillar separating the first view membrane from the second view membrane at a substantially constant separation distance such that a volume of the viewing reservoir is substantially constant and invariable with respect to a temperature and invariable with respect to a pressure to which the sample cell is subjected.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 5, 2020
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: J. Alexander Liddle, Samuel M. Stavis, Glenn E. Holland
  • Patent number: 10265699
    Abstract: A fluid sampler includes: a sample cell that includes: a substrate comprising: a first port; a second port in fluid communication with the first port; a viewing reservoir in fluid communication with the first port and the second port and that receives the fluid from the first port and communicates the fluid to the second port, the viewing reservoir including: a first view membrane; a second view membrane; and a pillar interposed between the first view membrane and second view membrane, the pillar separating the first view membrane from the second view membrane at a substantially constant separation distance such that a volume of the viewing reservoir is substantially constant and invariable with respect to a temperature and invariable with respect to a pressure to which the sample cell is subjected.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: April 23, 2019
    Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: J. Alexander Liddle, Samuel M. Stavis, Glenn E. Holland
  • Patent number: 10247860
    Abstract: A localized gap plasmon resonator includes: a pad including: a first plasmonic material to support a surface plasmon; and a first plasmon surface; a nanoelectromechanical (NEM) member disposed opposing the first plasmon surface of the pad and spaced apart from the pad by a plasmon gap, the plasmon gap supporting a plasmon resonance; and a plasmonic nanoprism disposed on the NEM member and including: a second plasmonic material to support a surface plasmon; and a second plasmon surface, such that: the second plasmon surface of the plasmonic nanoprism opposes the first plasmon surface of the pad; and the pad, the plasmonic nanoprism, and the plasmon gap support a localized gap plasmon (LGP) mode.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 2, 2019
    Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Vladimir A. Aksyuk, Brian J. Roxworthy, J. Alexander Liddle
  • Publication number: 20170348686
    Abstract: A fluid sampler includes: a sample cell that includes: a substrate comprising: a first port; a second port in fluid communication with the first port; a viewing reservoir in fluid communication with the first port and the second port and that receives the fluid from the first port and communicates the fluid to the second port, the viewing reservoir including : a first view membrane; a second view membrane; and a pillar interposed between the first view membrane and second view membrane, the pillar separating the first view membrane from the second view membrane at a substantially constant separation distance such that a volume of the viewing reservoir is substantially constant and invariable with respect to a temperature and invariable with respect to a pressure to which the sample cell is subjected.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 7, 2017
    Inventors: J. ALEXANDER LIDDLE, SAMUEL M. STAVIS, GLENN E. HOLLAND
  • Publication number: 20170348687
    Abstract: A fluid sampler includes: a sample cell that includes: a substrate comprising: a first port; a second port in fluid communication with the first port; a viewing reservoir in fluid communication with the first port and the second port and that receives the fluid from the first port and communicates the fluid to the second port, the viewing reservoir including: a first view membrane; a second view membrane; and a pillar interposed between the first view membrane and second view membrane, the pillar separating the first view membrane from the second view membrane at a substantially constant separation distance such that a volume of the viewing reservoir is substantially constant and invariable with respect to a temperature and invariable with respect to a pressure to which the sample cell is subjected.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 7, 2017
    Inventors: J. ALEXANDER LIDDLE, SAMUEL M. STAVIS, GLENN E. HOLLAND
  • Publication number: 20170242163
    Abstract: A localized gap plasmon resonator includes: a pad including: a first plasmonic material to support a surface plasmon; and a first plasmon surface; a nanoelectromechanical (NEM) member disposed opposing the first plasmon surface of the pad and spaced apart from the pad by a plasmon gap, the plasmon gap supporting a plasmon resonance; and a plasmonic nanoprism disposed on the NEM member and including: a second plasmonic material to support a surface plasmon; and a second plasmon surface, such that: the second plasmon surface of the plasmonic nanoprism opposes the first plasmon surface of the pad; and the pad, the plasmonic nanoprism, and the plasmon gap support a localized gap plasmon (LGP) mode.
    Type: Application
    Filed: February 2, 2017
    Publication date: August 24, 2017
    Inventors: VLADIMIR A. AKSYUK, IV, BRIAN J. ROXWORTHY, J. ALEXANDER LIDDLE